[danielnash]

Choosing the best plugin for your WordPress site will help make your work easier and deliver a better experience for your users as well.

These 7 SEO plugins is very essentials for any WordPress website.

1) Onpage SEO plugin to help you with SEO Optimization of your pages
2) Google Analytics plugin to track your visitors
3) Advanced editor for posts and pages to make editing easier
4) Image Optimizer to reduce sizes of your images for web without losing quality
5) Sitemap plugin to generate sitemap.xml for your website and automatically update it after any change you make (vital for search engines)
6) Plugin to change login page URL in order to secure it from hackers attacks
7) Plugin for customization of admin panel

Please suggest us more plugins.

[Alexa]

Good and informative article, Daniel!
I hope the ones, who use WordPress will suggest you more plugins! 

[MSL]

 Daniel, your signature rocks! So many anchors... wow...
 And ontopic: https://wordpress.org/plugins
 (I don't have any WordPress project currently.)

[johnniewalk]

Nice information, i think for seo purpose it is better use yoast plugin for the wordpress website

[sadesh]

Google Keyword Planner also one the best plugin for your WordPress site..